Low-pressure twin-fluid atomization: Effect of mixing process on spray formation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU121191" target="_blank" >RIV/00216305:26210/17:PU121191 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0301932216300271" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0301932216300271</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijmultiphaseflow.2016.10.015" target="_blank" >10.1016/j.ijmultiphaseflow.2016.10.015</a>

Result language
angličtina
Original language name
Low-pressure twin-fluid atomization: Effect of mixing process on spray formation
Original language description
The present work comparably examines four different twin-fluid atomizers operated under the same op- erating conditions. Spray formation was examined by several approaches. The internal flow pattern was estimated using a simplified analytical approach, and the results were supported by the observation of the liquid discharge in the near-nozzle region. A high-speed back illumination was used for visualisation of the primary breakup. In the region of fully developed spray, the dynamics of droplets was studied using a phase-Doppler analyser (PDA). The information obtained from all methods was then correlated. Results show that the spray formation process depends mainly on the internal design of twin-fluid at- omizer at low gas to liquid ratios (GLR). The amount of gas influences the character of the internal two- phase flow, a mechanism of the liquid breakup, droplet dynamics and a resulting drop size distribution. Differences among the atomizers are reduced with the increase in GLR. Moreover, it was shown that a certain mixing process can inherently create the annular internal flow which generates a stable spray characterized by relatively low mean droplet size.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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